Preamble symbol transmitting method and device, and preamble symbol receiving method and device

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United States of America Patent

PATENT NO 10778484
APP PUB NO 20170195155A1
SERIAL NO

15304854

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Abstract

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Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and relevant device. The generated preamble symbol contains: a time-domain symbol with a first three-segment structure; or a time-domain symbol with a second three-segment structure; or a free combination of several time-domain symbols with the first three-segment structure and/or several time-domain symbols with the second three-segment structure arranged in any order. Using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to perform coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels, and generating a postfix or hyper prefix based on the truncation of the entirety or a portion of the time-domain main body signal would enable the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

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Patent Owner(s)

Patent OwnerAddress
SHANGHAI NATIONAL ENGINEERING RESEARCH CENTER OF DIGITAL TELEVISION CO LTD200125 ROOM 701 BLOCK B NO 1018 EAST SANLIQIAO ROAD PUDONG NEW AREA SHANGHAI SHANGHAI CITY SHANGHAI CITY 200125

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guan, Yunfeng Shanghai, CN 24 53
Guo, Xufeng Shanghai, CN 12 43
He, Dazhi Shanghai, CN 21 49
Huang, Ge Shanghai, CN 21 72
Xing, Guanbin Shanghai, CN 45 1581
Xu, Hongliang Shanghai, CN 40 131
Zhang, Wenjun Shanghai, CN 111 675

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